To the Editor of the Journal of Cutaneous Diseases:
The past ten years have witnessed a remarkable development in the domain of physical therapeutics, in contrast with those of a pharmacal character. Aside from the use of electricity, which dates back as a therapeutic agent to the days of Benjamin Franklin, the more recent achievements have been in connection with certain radiations, notably, the X-Rays, radium radiations, light rays and the invisible radiations that accompany them. That the use of these agencies should be taken up by many men who are utterly ignorant of the scientific principles that underlie their proper employment is a matter of common knowledge, but the limit has been reached, we think, in an article that appeared in a recent number of a western journal.
Correspondence. A Remarkable Photo-Physical Discovery.. Arch Dermatol. 2007;143(5):571. doi:10.1001/archderm.143.5.571